Explanation

Explanation

The correct preposition is "in" when referring to a reduction or decrease in something, such as prices. 

Other options:

About: Does not fit the context of describing a decrease.

On: Incorrect in this context.

Of: Refers to possession or belonging, not a decrease.

Explanation

Magma that is low in silica and high in iron and magnesium is mafic magma.

Mafic magma is also known as basaltic magma

Silica content: Mafic magma has a silica content of roughly 50%. 

Mafic magma contains dark-colored minerals, such as olivine and pyroxene,

Explanation

Blogs are personal logs, journal entries, or articles that individuals or organizations post on the web.

They often contain:

• Text
• Images
• Videos
• Links

These are typically updated regularly to share thoughts, ideas, or information with an audience

Explanation

The main role of police in society is to protect individuals and property, preserve order, and enforce criminal laws.

• Protect life and property: Police enforce laws and regulations to protect people and their belongings.
• Preserve order: Police maintain public order and safety.
• Enforce criminal laws: Police prevent, detect, and investigate criminal activities.

Explanation

Explanation

Alunar eclipse can only occur during a full moon.

A lunar eclipse happens when the Earth is positioned between the Sun and the Moon, casting a shadow on the Moon. This can only happen when the Sun, Earth, and Moon are in a very close alignment, which is called a syzygy

Explanation

Solid carbon dioxide, also known as dry ice

It is a cooling agent that has a lower temperature than water ice and is solid

It is extremely cold, with a temperature of −109 °F (−78 °C). 

Explanation

Explanation